Question

You are downloading a song. The percent y (in decimal form) of megabytes remaining to get downloaded in x seconds is given by y = – 0.1x + 1 after how many seconds the song will be downloaded completely?

Answer 1

When a song is downloaded completely the remaining percent is zero.

i.e y = 0

0 = – 0.1x + 1 

0.1x = 1 second

x = `1/0.1 = 1/1 × 10`

x = 10 seconds